The Philippine Senate said on Monday it will conduct a formal probe of ex-president Rodrigo Duterte's arrest and swift handover last week to the International Criminal Court, which is to try him for alleged crimes against humanity.

Duterte, 79, appeared at the hearing via videolink, with presiding judge Iulia Motoc citing his prior “long journey."

Former Philippine President Rodrigo Duterte has been arrested on order of the International Criminal Court in connection with a case of crime against humanity filed against him, the Philippine government said.

Former Philippine President Rodrigo Duterte did not appear in the courtroom for his initial hearing at the International Criminal Court in The Hague on Friday. Duterte would follow the proceedings through a video link,

In an International Criminal Court hearing in The Hague, Rodrigo Duterte's lawyer calls the politician's arrest in Manila 'pure and simple kidnapping.'

Former Philippine President Rodrigo Duterte was "abducted" before being taken to The Hague to face murder allegations and is too ill to give evidence, his lawyer told International Criminal Court judges at his initial appearance on Friday.

Former Philippines president Rodrigo Duterte appears via video link at a hearing at the Hague, where he faces murder charges related to his “war on drugs.” Former ICC Prosecutor Luis Moreno Ocampo outlines the charges against Duterte,